EP0942853B1 - Accident sensor consisting of a deformable part of the vehicle - Google Patents
Accident sensor consisting of a deformable part of the vehicle Download PDFInfo
- Publication number
- EP0942853B1 EP0942853B1 EP98952686A EP98952686A EP0942853B1 EP 0942853 B1 EP0942853 B1 EP 0942853B1 EP 98952686 A EP98952686 A EP 98952686A EP 98952686 A EP98952686 A EP 98952686A EP 0942853 B1 EP0942853 B1 EP 0942853B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor vehicle
- deformation
- radiation
- synthetic material
- material part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R2021/01302—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over monitoring vehicle body vibrations or noise
Definitions
- the invention relates to an accident sensor for detecting an impact according to the Preamble of claim 1.
- Previous accident sensors are designed as so-called acceleration sensors. In the event of an accident, they record the acceleration or deceleration occurs on impact. If the acceleration or deceleration exceeds a critical one Motor vehicle safety devices such as belt tensioners or Airbag triggered. There are usually several acceleration sensors on the motor vehicle attached, each acceleration sensor the acceleration or Deceleration detected in a spatial direction to a frontal impact, side impact and to detect rollover of the motor vehicle.
- a generic accident sensor is known from DE 44 07 763 A1 consists of optical fibers made of plastic, which are partially arranged between pressure transmission means, wherein this pressure transmission means in a zone of the vehicle skin or the vehicle door are arranged, which are likely to be exposed to shock loads in an accident will be.
- the end pieces of these optical fibers are optical with a radiation transmitter or radiation receiver coupled.
- a pressure on the optical fibers in the area of pressure transmission means the radiation transmission properties change the optical fibers, the conclusions about a deformation of the vehicle skin, in particular the outer wall of the door as a result of an accident.
- the motor vehicle safety device described in DE 195 37 383 uses at least one in addition to at least one acceleration sensor
- Another optical sensor which is preferably in a vehicle door of a vehicle is arranged.
- This sensor comprises an elongated, light-guiding element the ends of which are coupled to a radiation transmitter or a radiation receiver is.
- the light-conducting element consists of an optical fiber, which is within a Sheath is arranged and wound helically by a pressure transmission means is.
- US 43 46 914 discloses an acoustic vibration in load-bearing parts the vehicle body responsive impact detection device.
- the transformation the acoustic signals into electrical signals are done by a or more piezoelectric force sensors with one or more acoustic waveguides are connected.
- the latter are thin Steel pipes that extend from the central installation location of the sensor or sensors into the impact-prone Extend areas of the body and there for acoustic coupling serve with load-bearing parts, which are punctiform in several places are welded.
- the signals are processed by a microprocessor. she forms the basis for determining the triggering of the occupant restraint system required impact situation.
- DE 37 29 019 A1 describes a device for triggering a safety device. This is done by assigning sound and / or structure-borne noise sensors a system enables an impact on obstacles from others differentiate between corresponding noises and disturbances in critical driving conditions.
- the invention has for its object to show an accident sensor that Deformation of a motor vehicle when hitting an obstacle indicates the can be attached easily and inexpensively and the location of the deformation recognizes on the motor vehicle.
- the plastic part is arranged around the entire motor vehicle and also serves as a bumper and / or scratch protection. Furthermore, by the spatial orientation of the signal receiver, the location of the deformation on the motor vehicle be determined.
- Figure 1 shows a motor vehicle 1 with a surrounding plastic part 2.
- the depicted Motor vehicle 1 is in the impact areas entirely or partially with this plastic part 2 surrounded.
- the plastic part 2, the motor vehicle 1 in the application example surrounds in the lower area, serves as scratch protection and for minor rear-end collisions or when parking in and out as a bumper to prevent damage to the Avoid paint or the body.
- This plastic part 2 that most Accidents always get damaged first, are themselves or include at least one Part of the accident sensor.
- This plastic part 2 can be continuous or only partially be arranged around the vehicle 1. In all cases, the plastic part 2 however several tasks.
- the plastic part 2 is designed so that it deforms its radiation. permeability changed.
- the plastic part 2 on the motor vehicle 1 can simultaneously be used as a deformation meter, the one for a certain degree of deformation emits typical signal optically. Because of the terms that the Signal from the deformation site to the signal receiver is required, the deformation site be determined.
- the plastic part 2 can also consist of several layers, which are different Properties such as Have light transmission,
- FIG. 2A shows the principle of measuring the radiation or the beam path 5 in FIG Plastic part 2.
- This figure shows a radiation-permeable plastic part 2, the is arranged around a motor vehicle as described in FIG. 1. It is immaterial here whether the entire plastic part 2 is transparent to radiation or at least a radiation-permeable layer is arranged on or in the plastic part.
- the structure includes a radiation source 3 and a radiation detector 4.
- the radiation detector 4 measures the amount of radiation from the Radiation or light source is transported via the light guide.
- the light guide should be shielded in such a way that radiation from outside does not reach the radiation detector 4 can reach. As long as the plastic part 2 is not damaged the same amount of light will always reach the radiation detector 4.
- the plastic part 2 and in particular the light guide is damaged, as shown in the figure 2B the optical accident detection by the changed beam path.
- the beam path 5 is changed and the Radiation amount that reaches the radiation receiver 4 is reduced.
- the one from the Radiation or light source 3 emitted radiation takes a different path as shown in Figure 2A.
- the deformation 10 of the plastic part 2 these parameters change constantly until the deformation process is complete.
- the change in the amount of radiation over time and the change in radiation distribution over the Time allows conclusions to be drawn as to the cause of the damage to the plastic part.
- evaluation electronics not shown, as e.g. in DE 37 29 019 the severity of the accident, the course of the accident and the location of the deformation be determined on the motor vehicle.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Air Bags (AREA)
- Automotive Seat Belt Assembly (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
Die Erfindung betrifft einen Unfall-Sensor zur Erfassung eines Aufpralls gemäß dem
Oberbegriff des Patentanspruches 1.The invention relates to an accident sensor for detecting an impact according to the
Preamble of
Bisherige Unfall-Sensoren sind als sogenannte Beschleunigungssensoren aufgebaut. Sie erfassen im Falle eines Unfalls die Beschleunigung bzw. Verzögerung, die beim Aufprall auftritt. Übersteigt die Beschleunigung bzw. Verzögerung einen kritischen Wert, so werden Kraftfahrzeug-Sicherheitseinrichtungen, wie Gurtstraffer oder Luftsack ausgelöst. In der Regel sind mehrere Beschleunigungssensoren am Kraftfahrzeug angebracht, wobei jeder Beschleunigungssensor die Beschleunigung bzw. Verzögerung in eine Raumrichtung erfaßt, um einen Frontalaufprall, Seitenaufprall und Überschlagen des Kraftfahrzeuges zu delektieren.Previous accident sensors are designed as so-called acceleration sensors. In the event of an accident, they record the acceleration or deceleration occurs on impact. If the acceleration or deceleration exceeds a critical one Motor vehicle safety devices such as belt tensioners or Airbag triggered. There are usually several acceleration sensors on the motor vehicle attached, each acceleration sensor the acceleration or Deceleration detected in a spatial direction to a frontal impact, side impact and to detect rollover of the motor vehicle.
Ein gattungsbildender Unfall-Sensor ist aus der DE 44 07 763 A1 bekannt, der aus bandförmig zusammengefaßten aus Kunststoff hergestellten Lichtleitfasern besteht, die partiell zwischen Druckübertragungsmitteln verlaufend angeordnet sind, wobei diese Druckübertragungsmittel in einer Zone der Fahrzeughaut bzw. der Fahrzeugtür angeordnet sind, die voraussichtlich bei einem Unfall Stoßbelastungen ausgesetzt sein wird. Die Endstücke dieser Lichtleitfasern sind optisch mit einem Strahlungssender bzw. Strahlungsempfänger gekoppelt. Eine Druckeinwirkung auf die Lichtleitfasem im Bereich der Druckübertragungsmittel verändert die Strahlungsübertragungseigenschaften der Lichtleitfasern, die Rückschlüsse auf eine Deformation der Fahrzeughaut, insbesondere der Türaußenwandung infolge eines Unfalles schließen lassen.A generic accident sensor is known from DE 44 07 763 A1 consists of optical fibers made of plastic, which are partially arranged between pressure transmission means, wherein this pressure transmission means in a zone of the vehicle skin or the vehicle door are arranged, which are likely to be exposed to shock loads in an accident will be. The end pieces of these optical fibers are optical with a radiation transmitter or radiation receiver coupled. A pressure on the optical fibers in the area of pressure transmission means the radiation transmission properties change the optical fibers, the conclusions about a deformation of the vehicle skin, in particular the outer wall of the door as a result of an accident.
Auch die in der DE 195 37 383 beschriebene Kraftfahrzeug-Sicherheitseinrichtung verwendet neben mindestens einem Beschleunigungssensor noch mindestens einen weiteren optischen Sensor, der vorzugsweise in einer Fahrzeugtür eines Fahrzeuges angeordnet ist. Dieser Sensor umfaßt ein langgestrecktes, lichtleitendes Element, an dessen Endstücken ein Strahlungssender bzw. ein Strahlungsempfänger angekoppelt ist. Das lichtleitende Element besteht aus einer Lichtleitfaser, die innerhalb einer Hülle angeordnet ist und von einem Druckübertragungsmittel schraubenförmig umwunden ist. Bei Einwirkung einer Kraft auf die Lichtleitfaser kommt es insbesondere durch das Zusammenwirken der Hülle und des Druckübertragungsmittels zu einer zeitweiligen Verformung der Lichtleitfaser, die deren Lichtübertragungseigenschaften beeinträchtigt, die zur Erkennung von insbesondere infolge eines Zusammenstoßes auftretenden Druckbelastungen ausgenutzt werden kann.The motor vehicle safety device described in DE 195 37 383 uses at least one in addition to at least one acceleration sensor Another optical sensor, which is preferably in a vehicle door of a vehicle is arranged. This sensor comprises an elongated, light-guiding element the ends of which are coupled to a radiation transmitter or a radiation receiver is. The light-conducting element consists of an optical fiber, which is within a Sheath is arranged and wound helically by a pressure transmission means is. When a force acts on the optical fiber, it occurs in particular by the interaction of the shell and the pressure transmission means into one Temporary deformation of the optical fiber, the light transmission properties impaired, especially for detection as a result of a collision occurring pressure loads can be exploited.
Nachteilig hierbei ist jedoch, daß für jede Raumrichtung ein Beschleunigungssensor benötigt wird. Auch können derartige Sensoren den Ort des Aufpralls nicht ermitteln. Diese Systeme ermitteln nicht direkt den Aufprall und die damit verbundene Verformung des Kraftfahrzeuges, sondern nur die durch die Verformung resultierende Beschleunigung bzw. Verzögerung.The disadvantage here, however, is that an acceleration sensor for each spatial direction is needed. Such sensors also cannot determine the location of the impact. These systems do not directly determine the impact and the associated deformation of the motor vehicle, but only the acceleration resulting from the deformation or delay.
Die US 43 46 914 offenbart eine auf akustische Schwingungen in tragenden Teilen der Fahrzeugkarosserie ansprechende Aufprallerkennungseinrichtung. Die Umwandlung der akustischen Signale in elektrische Signale geschieht hierbei durch einen oder mehrere piezoelektrischen Kraftsensoren, die mit einem oder mehreren akustischen Wellenleitern verbunden sind. Bei letzterem handelt es sich um dünne Stahlrohre, die sich vom zentralen Einbauort des oder der Sensoren aus in die aufprallgefährdeten Bereiche der Karosserie erstrecken und dort zur akustischen Kopplung mit tragenden Teilen dienen, welche an mehreren Stellen jeweils punktförmig verschweißt sind. Die Signalverarbeitung erfolgt durch einen Mikroprozessor. Sie bildet die Grundlage zur Feststellung einer die Auslösung des Insassenrückhaltesystems erfordernden Aufprallsituation.US 43 46 914 discloses an acoustic vibration in load-bearing parts the vehicle body responsive impact detection device. The transformation the acoustic signals into electrical signals are done by a or more piezoelectric force sensors with one or more acoustic waveguides are connected. The latter are thin Steel pipes that extend from the central installation location of the sensor or sensors into the impact-prone Extend areas of the body and there for acoustic coupling serve with load-bearing parts, which are punctiform in several places are welded. The signals are processed by a microprocessor. she forms the basis for determining the triggering of the occupant restraint system required impact situation.
Nachteilig hierbei ist jedoch, daß die Schallwellen in einem aufwendigen rohrförmigen Wellenleitersystem aufgefangen werden und von dort an ein zentrales Piezoelement transportiert werden, das die Schallwellen in ein Spannungssignal umwandelt. Dieses Spannungssignal wird dann an einen Mikroprozessor weitergeleitet. Neben der aufwendigen und teueren Verarbeitung des Röhrensystems ist es weiterhin nicht möglich mit dieser Vorrichtung auf die Herkunft des Signals zu schließen. Es erkennt nur die Unfallschwere. Die Stelle, an dem die Verformung zustande kommt, kann mit diesem Sensor nicht erkannt werden. The disadvantage here, however, is that the sound waves in a complex tubular Waveguide system are collected and from there to a central piezo element are transported, which converts the sound waves into a voltage signal. This voltage signal is then passed on to a microprocessor. Next it is still the complex and expensive processing of the tube system not possible to infer the origin of the signal with this device. It only recognizes the severity of the accident. The place where the deformation occurs cannot be recognized with this sensor.
Die DE 37 29 019 A1 beschreibt eine Einrichtung zur Auslösung einer Sicherheitsvorrichtung. Hierbei wird durch die Zuordnung von Schall und/oder Körperschallsensoren ein System in die Lage versetzt einen Aufprall auf Hindernisse von sonstigen entsprechenden Geräuschen und Störungen bei kritischen Fahrbedingungen zu unterscheiden.DE 37 29 019 A1 describes a device for triggering a safety device. This is done by assigning sound and / or structure-borne noise sensors a system enables an impact on obstacles from others differentiate between corresponding noises and disturbances in critical driving conditions.
Der Erfindung liegt die Aufgabe zugrunde, einen Unfall-Sensor aufzuzeigen, der die Verformung eines Kraftfahrzeuges beim Auftreffen auf ein Hindernis anzeigt, der einfach und kostengünstig angebracht werden kann und der den Ort der Verformung am Kraftfahrzeug erkennt.The invention has for its object to show an accident sensor that Deformation of a motor vehicle when hitting an obstacle indicates the can be attached easily and inexpensively and the location of the deformation recognizes on the motor vehicle.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1
gelöst.The object is achieved by the features of
Die mit der Erfindung erzielten Vorteile bestehen darin, daß mit diesem Unfall-Sensor der genaue Unfallort am Fahrzeug, d. h. der Ort der Verformung durch eine Auswertung des Signalverlaufes und eine Laufzeitbestimmung detektiert werden kann. Desweiteren ist diese Lösung im Vergleich zu anderen Unfall-Sensoren sehr kostengünstig und einfach zu realisieren. Dadurch lassen sich die Sicherheitsvorrichtungen ohne Mehraufwand gezielter auslösen.The advantages achieved by the invention are that with this accident sensor the exact location of the accident on the vehicle, d. H. the location of the deformation by an evaluation of the signal curve and a runtime determination can be detected. Furthermore this solution is very inexpensive compared to other accident sensors and easy to implement. This allows the safety devices to be used without Trigger additional effort more specifically.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen. Hierbei ist das Kunststoffteil um das gesamte Kraftfahrzeug angeordnet und dient gleichzeitig als Stoßfänger und/oder Kratzschutz. Des weiteren kann durch die räumliche Ausrichtung der Signalempfänger der Ort der Verformung am Kraftfahrzeug bestimmt werden.Advantageous developments of the invention result from the dependent claims. Here, the plastic part is arranged around the entire motor vehicle and also serves as a bumper and / or scratch protection. Furthermore, by the spatial orientation of the signal receiver, the location of the deformation on the motor vehicle be determined.
Ausführungsbeisplele der Erfindung sollen anhand der Figuren dargestellt werden.Exemplary embodiments of the invention are to be illustrated with the aid of the figures.
Es zeigen:
- Figur 1:
- Kraftfahrzeug mit umlaufender Kunststoffschicht,
- Figur 2A:
- Messung des Strahlengangs im Kunststoff, und
- Figur 2B:
- Optische Unfallerfassung durch veränderten Strahlengang.
- Figure 1:
- Motor vehicle with a surrounding plastic layer,
- Figure 2A:
- Measurement of the beam path in the plastic, and
- Figure 2B:
- Optical accident detection through changed beam path.
Figur 1 zeigt ein Kraftfahrzeug 1 mit umlaufendem Kunststoffteil 2. Das abgebildete
Kraftfahrzeug 1 ist in den Aufprallbereichen ganz oder teilweise mit diesem Kunststoffteil
2 umgeben. Das Kunststoffteil 2, das das Kraftfahrzeug 1 im Anwendungsbeispiel
im unteren Bereich umgibt, dient als Kratzschutz und bei kleineren Auffahrunfällen
oder beim Ein- und Ausparken als Stoßschutz um eine Beschädigung des
Lackes bzw. der Karosserie zu vermeiden. Dieses Kunststoffteil 2, das bei den meisten
Unfällen immer zuerst beschädigt wird, ist selbst oder beinhaltet zumindest einen
Teil des Unfall-Sensors. Dieses Kunststoffteil 2 kann durchgehend oder nur partiell
um das Fahrzeug 1 angeordnet sein. In allen Fallen erfüllt das Kunststoffteil 2
jedoch mehrere Aufgaben.Figure 1 shows a
Das Kunststoffteil 2 ist so beschaffen, daß es bei der Verformung seine Strahlungs.
durchlässigkeit verändert. Der Kunststoffteil 2 am Kraftfahrzeug 1 kann gleichzeitig
als Verformungsmesser verwendet werden, der ein für einen bestimmten Verformungsgrad
typisches Signal optisch aussendet. Aufgrund der Laufzeiten, die das
Signal vom Verformungsort bis zum Signalempfänger benötigt, kann der Verformungsort
bestimmt werden.The
Auch kann das Kunststoffteil 2 aus mehreren Schichten bestehen, die unterschiedliche
Eigenschaften, wie z.B. Lichtdurchlässigkeit besitzen,The
Figur 2A zeigt das Prinzip der Messung des Strahlung bzw. des Strahlengangs 5 im
Kunststoffteil 2. Diese Figur zeigt ein strahlungsdurchlässiges Kunststoffteil 2, das
um ein Kraftfahrzeug wie in Figur 1 beschrieben angeordnet ist. Hierbei ist es unwesentlich
ob das gesamte Kunststoffteil 2 strahlungsdurchlässig ist oder ob zumindest
eine strahlungsdurchlässige Schicht auf dem oder im Kunststoffteil angeordnet ist.
Desweiteren beinhaltet der Aufbau eine Strahlungsquelle 3 und einen Strahlungsdetektor
4. Der Strahlungsdetektor 4 mißt die Strahlungs- bzw. Lichtmenge, die von der
Strahlungs- bzw. Lichtquelle über den Lichtleiter transportiert wird. Der Lichtleiter
sollte derart abgeschirmt sein, daß eine von außen einfallende Strahlung nicht an
den Strahlungsdetektor 4 gelangen kann. Solange das Kunststoffteil 2 nicht beschädigt
ist, wird immer die gleiche Lichtmenge den Strahlungsdetektor 4 erreichen. Wird
jedoch das Kunststoffteil 2 und insbesondere der Lichtleiter beschädigt, so zeigt Figur
2B die optische Unfallerfassung durch den veränderten Strahlengang. Bei der
Deformation 10 des Kunststoffteils 2 wird der Strahlengang 5 verändert und die
Strahlungsmenge, die den Strahlungsempfänger 4 erreicht reduziert. Die von der
Strahlungs- bzw. Lichtquelle 3 ausgesendete Strahlung nimmt einen anderen Weg
wie in Figur 2A dargestellt. Dadurch verändert sich sowohl die Strahlungsverteilung
als auch die Strahlungsmenge, die vom Strahlungsdetektor 4 erfaßt wird. Während
der Deformation 10 des Kunststoffteils 2 verändern sich diese Parameter ständig
solange bis der Verformungsprozeß abgeschlossen ist. Die Veränderung der Strahlungsmenge
über die Zeit und die Veränderung der Strahlungsverteilung über die
Zeit erlauben Rückschlüsse auf die Ursache der Beschädigung des Kunststoffteiles.
Durch eine nicht abgebildete Auswerteelektronik, wie sie z.B. in der DE 37 29 019
offenbart wird, kann die Unfallschwere, der Unfatlhergang und der Deformationsort
am Kraftfahrzeug bestimmt werden.FIG. 2A shows the principle of measuring the radiation or the beam path 5 in FIG
Claims (3)
- An accident sensor for a motor vehicle (1) for triggering a safety system in the motor car, consisting of a deformable and radiation transparent synthetic material part (2) and a radiation sensitive detector (4) which optically detects the deformation of the synthetic material part (2), wherein the deformable synthetic material part (2) is penetrated by a defined quantity of light and wherein, in the course of the deformation of said part, the beam path (5) in the synthetic material part (2) and hence the defined quantity of light changes and the radiation sensitive detector (4) detects the quantity of light that has been changed by virtue of the deformation, characterised in that the deformable synthetic material part is disposed externally on the motor vehicle (1) and the position of the impact on the motor vehicle (1) is determined on the basis of the signal waveform and a determination of the transit time between the impact and the detection of the signal.
- An accident sensor for a motor vehicle (1) for triggering a safety system in the motor vehicle in accordance with Claim 1, characterised in that the deformable synthetic material part (2) simultaneously serves as a collision and scratch protector for the bodywork.
- An accident sensor for a motor vehicle (1) for triggering a safety system in the motor vehicle in accordance with claim 1 or 2, characterised in that the position of the impact on the motor vehicle (1) can be determined by the spatial orientation of the radiation sensitive detector (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19745309 | 1997-10-14 | ||
| DE19745309A DE19745309A1 (en) | 1997-10-14 | 1997-10-14 | Collision sensor for vehicles |
| PCT/EP1998/006266 WO1999019175A1 (en) | 1997-10-14 | 1998-10-01 | Accident sensor consisting of a deformable part of the vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0942853A1 EP0942853A1 (en) | 1999-09-22 |
| EP0942853B1 true EP0942853B1 (en) | 2003-05-14 |
Family
ID=7845481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98952686A Expired - Lifetime EP0942853B1 (en) | 1997-10-14 | 1998-10-01 | Accident sensor consisting of a deformable part of the vehicle |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0942853B1 (en) |
| JP (1) | JP2001508730A (en) |
| DE (2) | DE19745309A1 (en) |
| ES (1) | ES2196615T3 (en) |
| WO (1) | WO1999019175A1 (en) |
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| DE19835561B4 (en) * | 1998-08-06 | 2010-01-07 | Volkswagen Ag | Method and device for triggering at least one airbag |
| DE10000032C2 (en) * | 2000-01-03 | 2002-07-18 | Mario Fester | vehicle |
| EP1795880B1 (en) * | 2002-01-16 | 2008-10-01 | METHODE ELECTRONICS, Inc. | Omni-directional crash sensor |
| ATE409854T1 (en) * | 2002-01-16 | 2008-10-15 | Methode Electronics Inc | OMNIDIRECTIONAL COLLISION SENSOR |
| DE10227061A1 (en) | 2002-06-18 | 2004-01-08 | Robert Bosch Gmbh | Restraint system |
| DE10230560A1 (en) * | 2002-07-05 | 2004-06-24 | Volkswagen Ag | Motor vehicle impact sensor, especially for supporting, expanding active restraining systems, has at least 2 cords between vehicle and traction sensors providing traction signals to evaluation circuit |
| US7475587B2 (en) | 2003-01-16 | 2009-01-13 | Methode Electronics, Inc | Omni-directional crash sensor |
| ATE447510T1 (en) | 2003-06-25 | 2009-11-15 | Methode Electronics Inc | IMPACT DETECTION VIA PIEZOELECTRIC SENSORS |
| DE10340263B4 (en) * | 2003-08-29 | 2014-12-18 | Magna Electronics Europe Gmbh & Co.Kg | Front structure for a motor vehicle |
| US7557433B2 (en) | 2004-10-25 | 2009-07-07 | Mccain Joseph H | Microelectronic device with integrated energy source |
| DE10357352A1 (en) | 2003-12-09 | 2005-07-07 | Robert Bosch Gmbh | Device for controlling personal protective equipment |
| DE10360138A1 (en) * | 2003-12-20 | 2005-07-21 | Daimlerchrysler Ag | Piezoelectric collision detector and safety equipment deployment system for vehicle, detects mass of object, e.g. pedestrian, with which collision occurs and activates appropriate safety device |
| JP4082692B2 (en) * | 2004-03-18 | 2008-04-30 | 株式会社デンソー | Pedestrian detection device |
| DE102004031557B4 (en) | 2004-06-29 | 2016-12-22 | Conti Temic Microelectronic Gmbh | Method and crash sensor for a device for occupant-relevant activation of occupant protection devices in a motor vehicle in crash cases |
| DE102004034877A1 (en) * | 2004-07-19 | 2006-02-16 | Siemens Ag | impact sensor |
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| US7677080B2 (en) | 2006-02-02 | 2010-03-16 | Ford Global Technologies, Llc | Dual mode contact sensor for automotive vehicle |
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| DE102014013472A1 (en) | 2013-09-30 | 2015-04-02 | Hella Kgaa Hueck & Co. | Method for detecting and classifying damage events on motor vehicles and device therefor |
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| US5364158A (en) * | 1990-08-09 | 1994-11-15 | Mazda Motor Corporation | Impact-sensor mounting structure for an automotive vehicle |
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1998
- 1998-10-01 JP JP52094399A patent/JP2001508730A/en not_active Ceased
- 1998-10-01 WO PCT/EP1998/006266 patent/WO1999019175A1/en active IP Right Grant
- 1998-10-01 DE DE59808355T patent/DE59808355D1/en not_active Expired - Lifetime
- 1998-10-01 ES ES98952686T patent/ES2196615T3/en not_active Expired - Lifetime
- 1998-10-01 EP EP98952686A patent/EP0942853B1/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4115560A1 (en) * | 1990-05-11 | 1991-11-14 | Gen Engineering Bv | G-SENSOR |
| US5364158A (en) * | 1990-08-09 | 1994-11-15 | Mazda Motor Corporation | Impact-sensor mounting structure for an automotive vehicle |
| WO1997010128A1 (en) * | 1995-09-12 | 1997-03-20 | Breed Automotive Technology, Inc. | System and method for controlling vehicle safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001508730A (en) | 2001-07-03 |
| EP0942853A1 (en) | 1999-09-22 |
| ES2196615T3 (en) | 2003-12-16 |
| DE59808355D1 (en) | 2003-06-18 |
| WO1999019175A1 (en) | 1999-04-22 |
| DE19745309A1 (en) | 1999-04-22 |
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